Electrical Mystery

   / Electrical Mystery #22  
To test for amps you have to be in series with the line.
From your description I suspect a poor connection between the breaker and the the junction box.

Or a possibly a short (restive connection not enough to trip a breaker) in the wire at or going to the post where you have not yet installed a light. You might try turning the breaker all the way off and back on.
garry don't jump the gun, I wanted this to last more then 30 seconds LOL
 
   / Electrical Mystery #23  
OL is overload I am not surprised it didn't blow the protection fuse in the meter. You need to connect the amp meter is series with the light bulb in your test. I would not be surprised if you switched the meter back to volts and connects the meter in series with the light bulb that the voltage would drop to a very low number I suspect like others that the issue is either in the underground wire on a bad connection at the breaker itself.
 
   / Electrical Mystery #24  
This is how I have my meter connected.

View attachment 2123808
Sorry, but that is a great way to blow an ammeter. Series only.

The fact that you did that and neither the ammeter blew nor your breaker blew suggests to me that you have a wiring issue, with a bad connection, or an almost broken wire somewhere.

After you check all of your connections, I would put a space heater at the base of the pole and read both current and voltage. Breakers and underground wiring do go bad, but I would start with checking for no corrosion, good connections, and tight wire nuts first.

All the best,

Peter
 
   / Electrical Mystery #25  
   / Electrical Mystery #26  
man I hope eddie doesn't charge by the hour, he's taking forever to get that voltage reading.
 
   / Electrical Mystery
  • Thread Starter
#27  
I don't understand the comments about connecting in a series to measure amps, so I'm going to abandon that for now.

With the light attached to the wire, my voltage dropped in half. It's bouncing between 60 and 63 volts.

I need to get some things done before a big winter storm hits tomorrow, so I'm going to run an extension cord to the pole and power it that way for now. I'll look at the breaker box when the weather gets better

Thank you for all the suggestions. My current thoughts are that the wire in the ground was damaged by my wife planting stuff, or the breaker has failed.
 
   / Electrical Mystery #28  
I don't understand the comments about connecting in a series to measure amps, so I'm going to abandon that for now.

With the light attached to the wire, my voltage dropped in half. It's bouncing between 60 and 63 volts.

I need to get some things done before a big winter storm hits tomorrow, so I'm going to run an extension cord to the pole and power it that way for now. I'll look at the breaker box when the weather gets better

Thank you for all the suggestions. My current thoughts are that the wire in the ground was damaged by my wife planting stuff, or the breaker has failed.
as expected.

plan of action

go to the box on the fence post and do the exact same thing.

check voltage.
check wiring
attach bulb
bright or dim
same voltage with bulb lit?

if bulb is bright and voltage is stable at 118 etc. you have a problem with the connection or wire, from the fence to the lower section of the pole. strip the wiring back on both sides about an inch, make sure its shiny copper and use new wire terminals

if voltage/bulb is doing same thing.

then go to the breaker panel, check the breaker is fully seated, and the wiring is tight.
flip breaker on and off fully 3 times, retest.

if still dim

check voltage at the screw terminal on the breaker, with bulb lit, if still low, replace breaker,

if good, you have a issue with the wire between breaker and fence post.
 
   / Electrical Mystery #29  
I don't understand the comments about connecting in a series to measure amps, so I'm going to abandon that for now.

Many electrical testers are only good for about 10 amps or it will blow a fuse inside the tester, and perhaps damage the tester.

Yours says "2A Max" on the tester.

If you plug one lead of the tester to the hot, and one lead to the neutral while testing amps, then bad things could happen (15A or 20A fuse?)

So, what you do is: Hot --> Tester in --> tester out --> Load (light bulb) in --> Load (light bulb) out --> Neutral.

Then it depends on your load. A 100W, 120V light bulb would take just under 1A, and should be OK. A 5W, 120V LED would take about 0.05A.

Now, if you get a clamp on ammeter, it can take a lot more amps because it doesn't actually connect to the wires.

clamp-on-meter-2117-70.png
 
   / Electrical Mystery #30  
I don't understand the comments about connecting in a series to measure amps, so I'm going to abandon that for now.

With the light attached to the wire, my voltage dropped in half. It's bouncing between 60 and 63 volts.

I need to get some things done before a big winter storm hits tomorrow, so I'm going to run an extension cord to the pole and power it that way for now. I'll look at the breaker box when the weather gets better

Thank you for all the suggestions. My current thoughts are that the wire in the ground was damaged by my wife planting stuff, or the breaker has failed.

For when the storm hits, and you have time on your hands;

All the best,

Peter
 

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